Pets

In many forms, but the one thing they all have in common is that when offered, they are always warmly and emotionally received cause after all, they gave it in a way that was guaranteed to have impact.
The best example is my Moofy-Moo, (Mufasa)
Will very occasionally, maybe once a week if that, would hop in bed when I went, and curled himself right up under my chin with a lake of drool and ten minutes of the loveliest purring imaginable and then he was done and went on his way. No human has ever in a single moment communicated that pure and unconditional love the way Mufasa does when he's good and ready.